Square Off Timing: What It Means and When Positions Get Closed

It is 3:18 PM. You are still deciding whether to hold your intraday position for two more minutes, and before you can act, your broker has already sold it for you. No warning, no extra tap, just a trade confirmation sitting in your order book. If you have ever wondered why that happened, you have already met square off, even if nobody explained the term to you at the time.

Square off is something that directly affects your capital, your margin, and your final profit or loss for the day. This blog breaks down the square-off meaning in trading, its types, and the exact timing rules that apply across segments.

What is Square Off in Trading?

If you bought shares expecting the price to rise, squaring off means selling the exact quantity you bought.

If you sold shares you did not own, expecting the price to fall, squaring off means buying back the same quantity.

Until a position is squared off, your profit or loss exists only on paper. The moment the opposite trade goes through, that outcome becomes real and shows up in your account balance.

You may have also seen the short form “sqr” on order books or trading terminals. It is the shortened version brokers use to save space in transaction logs.

What Are Shoonya’s Square Off Timings by Segment?

These timings are the standard intraday cutoffs on regular trading days. Expiry days follow a separate set of rules, since expiry brings extra steps around delivery and margin requirements.

What are the Square Off Timings for Expiry Day Events?

How Does Square Off Work?

Whatever trade you opened, you close it with the opposite trade of the same quantity.

If you started by buying:

• You buy 200 shares in the morning, hoping the price goes up.
• To close the trade, you sell those same 200 shares later in the day.
• The difference between your buy and sell prices is your profit or loss.

If you started by selling:

• You sell 200 shares first, without owning them, hoping the price goes down.
• To close the trade, you buy back those same 200 shares later.
• The difference between your sell price and your buy price determines your profit or loss.

Either way, the trade only becomes final once you place the opposite order. Until then, it is still an open position, and your profit or loss keeps changing with the market.

What Are the Different Types of Square Off?

There are three main ways a position can be closed, and each suits a different style of trading.

• Manual square off: You decide when to exit and place the opposite order yourself. You control the timing and the price, which works well if you are watching the market closely.
• Auto square off: The broker’s system closes your open intraday position for you, usually because you did not exit it yourself before the cutoff. This prevents intraday trades from accidentally becoming delivery positions, which would require full payment rather than margin.
• Partial square off: You close only part of your position and keep the rest open. If you hold 100 shares and want to lock in some profit, you might square off 50 shares and let the remaining 50 continue.

What Is Auto Square Off?

Auto square-off is the safety net brokers build into intraday and derivatives trading so that no open position is left unclosed by accident.

Intraday trades usually use margin instead of the full transaction value, so exchanges and brokers require these positions to be closed before the trading session ends. If you forget to exit:

• The broker’s system automatically places a square-off order at a fixed time.
• You have no control over the exact price at which it gets executed.
• The position could end up needing higher margin if it accidentally turns into a delivery trade.

What Happens After Auto Square Off?

Once the system processes an auto square-off:

• The system places a market order for the open position, since the priority is to close it quickly rather than at a specific price.
• The order executes at the prevailing market price, which may differ from what you would have received with a manual exit.
• Your profit or loss for that position is finalised and reflected in your trading account.
• The margin that was blocked for the position is released and becomes available for further trades.
• The trade appears in your order book and contract note like any other executed trade, along with applicable brokerage and statutory charges.
• Some brokers also apply a separate auto-square-off charge, so check your broker’s fee schedule for details.

Why Is Squaring Off Important for Intraday Traders?

Square-off is a fundamental trading strategy that helps manage risk and enables traders to exit their positions effectively.

• Profit Realisation: It allows traders to lock in their profits by closing their positions.
• Loss Limitation: It helps limit potential losses by ensuring that positions do not remain open longer than intended.
• Risk Management: It reduces the risk of overnight market movements affecting your trade.

What Mistakes Should Traders Avoid While Squaring Off?

A few habits tend to cost traders more at the exit stage than at the entry.

Here are mistakes that every trader should avoid:

• Waiting until the last few minutes: This leaves your exit price at the mercy of last-minute price swings.
• Ignoring segment-specific cutoffs: Traders who deal in equity, F&O, and commodities on the same day often assume that one deadline applies across all segments. It does not.
• Holding on hoping for a reversal: A small loss can turn into a much larger one by the time auto square-off kicks in.
• Not setting an exit level in advance: A stop loss or target price removes most of this guesswork.

Conclusion

Square-off Timings: FAQs